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ChemicalBook CAS DataBase List 3',6'-Bis(acetyloxy)-6-nitrospiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-one
53299-21-1

3',6'-Bis(acetyloxy)-6-nitrospiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-one synthesis

3synthesis methods
-

Yield:14926-29-5 28% ,53299-21-1 25%

Reaction Conditions:

Stage #1: 4-nitrophthalic acid;benzene-1,2-diol at 180 - 190; for 3 h;
Stage #2: with hydrogenchloride for 1 h;Heating;
Stage #3: acetic anhydride for 1 h;Heating;

References:

Sigmund, Harald;Pfleiderer, Wolfgang [Helvetica Chimica Acta,2003,vol. 86,# 7,p. 2299 - 2334]

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